Restructuring Restructuring Narrative (Details) (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2015	Dec. 31, 2014
Restructuring Cost and Reserve [Line Items]
Cash	$ 4,244,000
Restructuring and Related Cost, Expected Cost Remaining	3,600,000
European Workforce Reduction [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges		9,000,000
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Cash	4,100,000
Employee Severance [Member] | European Workforce Reduction [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges		8,700,000
Cash	4,147,000
Lease Charges [Member]
Restructuring Cost and Reserve [Line Items]
Cash	100,000
Lease Charges [Member] | European Workforce Reduction [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges		300,000
European Leases and Equipment Write-Off [Member]
Restructuring Cost and Reserve [Line Items]
Cash	$ 97,000